Rust Brown #8B3103

Rust Brown is a dark, moderately saturated brown with hex code #8B3103 and RGB rgb(139, 49, 3).

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White text reads best on this color (8.27:1).

About this color

#8B3103 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.132 and its hue 41°. Its hue sits on the warm side of the wheel. It is the named color Rust Brown. White text reads best on it, at 8.27:1.

Hue familyBrowns
Lightnessdark (44%)
Chromamoderately saturated (0.132)
Temperaturewarm
Nearest nameRust Brown
Black text2.53:1
White text8.27:1

Colors that go with Rust Brown

Matches found by rotating Rust Brown around the OKLCH hue wheel, each labelled with the closest name in our list.

Complementary

The opposite hue (180°).

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

Open the analogous palette in the generator

Color palettes with Rust Brown

Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Rust Brown, closest first.

Similar named colors

The eight named colors closest to Rust Brown, with their ΔE distance.

More about Rust Brown

How to make Rust Brown

A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.

  • 2 parts brown
  • 1 part red

Recipe result: #854028, a difference of ΔE 0.035 from Rust Brown. That is close; add a little more of one paint to match.

What colors make brown? | Color mixing chart

Codes for Rust Brown in every format

HEX#8B3103
RGBrgb(139, 49, 3)
HSLhsl(20, 96%, 28%)
OKLCHoklch(43.9% 0.132 41.3)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #8B3103 8.27:1 AAA Lc -92.4 Preferred for body text
Black text on #8B3103 2.53:1 Fails Lc 16.3 Dividers and decoration only
#8B3103 text on white 8.27:1 AAA Lc 87.7 Fine for body text
#8B3103 text on black 2.53:1 Fails Lc -14.5 Not readable

Shades and tints of Rust Brown

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.

  1. Step 50

    50

    #FCF3F0

    oklch(97% 0.011 39.4)

  2. Step 100

    100

    #F8E5DF

    oklch(93.5% 0.022 38.3)

  3. Step 200

    200

    #F3D0C4

    oklch(88.4% 0.043 39.8)

  4. Step 300

    300

    #EDB19A

    oklch(81% 0.077 41.9)

  5. Step 400

    400

    #E18562

    oklch(70.8% 0.124 41.4)

  6. Step 500

    500

    #D66233

    oklch(63.1% 0.158 41.2)

  7. Step 600

    600

    #C14500

    oklch(55.6% 0.171 41.1)

  8. Step 700

    700

    #A33900

    oklch(49.1% 0.151 41.1)

  9. Step 800

    800 (this color)

    #8B3103

    oklch(43.9% 0.132 41.3)

  10. Step 900

    900

    #6D2A0D

    oklch(37.7% 0.103 41.2)

  11. Step 950

    950

    #40190A

    oklch(26.9% 0.066 40.6)

Export this scale for Tailwind in the Tailwind colors tool

Rust Brown with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#4C42000.128
Deuteranopia (no green cones)#6256000.116
Tritanopia (no blue cones)#9A172A0.062
Achromatopsia (no color)#4E4E4E0.133

Use Rust Brown in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.